Experimental verification and analytical calculation of unbalanced magnetic force in permanent magnet machines
Author(s) -
Kyung-Hun Shin,
Han-Wook Cho,
Jang-Young Choi
Publication year - 2017
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.4975698
Subject(s) - magnet , finite element method , magnetic field , computer science , nonlinear system , process (computing) , magnetic potential , mechanical engineering , physics , engineering , thermodynamics , quantum mechanics , operating system
In this study, an exact analytical solution based on Fourier analysis is proposed to compute the unbalanced magnetic force in a permanent magnet machine. The magnetic field solutions are obtained by using a magnetic vector potential and by selecting the appropriate boundary conditions. Based on these field solutions, the force characteristics are also determined analytically. All analytical results were extensively validated with nonlinear two-dimensional finite element analysis and experimental results. Using proposed method, we investigated the influence on the UMF according to machine parameters. Therefore, the proposed method should be very useful in initial design and optimization process of PM machines for UMF analysis
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